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数据库sql 创建视图与视图简介

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Release: 2016-06-07 17:49:42
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视图图的英文名是view是一种虚拟存在的表,对于使用视图用户来说,基本是透明的,并且是mysql视图在数据库中是不存在的,相关的数据来自于查询中使用的表,并且是动态生成的。

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